diff --git a/wiz_game.py b/wiz_game.py
index cf3e56c..4ee8262 100644
--- a/wiz_game.py
+++ b/wiz_game.py
@@ -26,7 +26,7 @@ class Card:
         if self.color and self.color != '-':
             s = "{}{:02d}".format(self.color, self.value)
         else:
-            s = "{}{}".format(self.value, self.idx)
+            s = "{}{}".format(self.value.lower(), self.idx)
         return s